A Mafia Boss Who Doesn't Want to Be a Ninja Isn't a Proper Jujutsu Sorcerer

[Crossover fanfic, all pairings, apologies for out-of-character portrayals.] Just as the title says: Kamishiro Rin, a sorcerer who ended up in the Mafia. Well, if she was in the Mafia, then she was in the Mafia. Kamishiro Rin worked diligently, putting her life on the line for the Port Mafia. On the day she finally rose to become an executive, her former boss dumped all his unfinished business on her and defected with his best buddy, Mimy. Without a word, Rin stabbed the rotten leader through the windpipe, then followed the previous boss's example and took the position of boss for herself. What do you mean, usurpation? That's such an ugly word. This is clearly a tribute to the previous boss. Unfortunately, the life of drunken revelry and luxury didn't stay peaceful for long. The underworld was about to descend into chaos again. Inside Yokohama, ability users were running wild. Outside the city, curses were so densely packed there were almost more of them than people. Trouble at home and threats from abroad. Yokohama was once again on the brink of chaos, while the strongest sorcerers were watching from outside. First Rin heard that a weretiger had arrived in Yokohama, then that a cursed vessel named Yuji Itadori had appeared in the jujutsu world. And that wasn't all. The hardest thing to deal with was the sudden arrival of a bunch of brats! Brat No. 1 had fair skin and was beautiful, but suffered from chronic illness. Brat No. 2 had fair skin and was beautiful, but wasn't very pleasant to listen to. Brat No. 3 had fair skin and was beautiful, but had a hair-trigger temper. Just kidding. They'd blow up even without a trigger. Brat No. 4 had fair skin and was beautiful... Wait, no, this one was disfigured, so that didn't count. Unfortunately, they seemed to have a split personality. Brats No. 1 through 8 bickered together all day long. After finally finding a cafe where she could get some peace and quiet, Rin looked up to find a patient with a severe bandage dependency taking her hand and gazing at her tenderly. "Beautiful lady, would you like to die with me?"